This wing tip, 100% LED, strobe and navigation light system features a cluster of very bright LEDs and using a common controller that furnishes the heads with a junction point for synchronizing and selecting one of the 7 flash patterns of the LED STROBES. It also allows for a separate power source to the navigation red, green and white LEDs.

Power draw: Strobe and Position lights are LESS than 2 Amps at 12 to 14 volts

Footprint Dimensions (Heads): 3.2" long x 1.1" wide

Footprint Dimensions (Controller): 2.2" x 5"

Are these approved for certified aircraft?
No, they are not approved for certified aircraft.
Is the dimensions units is cm or inch? Footprint Dimensions (Heads): 3.2 long x 1.1 wide / Footprint Dimensions (Controller): 2.2 x 5
These dimensions are listed in inches.
You state that the current draw for the lights is less than 2 amps do you mean that:
Both lights together are less than 2 amps, or each light is less than 2 amps?
Does the amp figure consider when both the strobe and nav light is flashing?
Yes, the 2 amp rating is for the entire system. This takes into account both the strobe and nav lights.
What is the lens made out of on the Kuntzleman LED aircraft lighting system? Is it glass or polycarbonate?
This lens is polycarbonate.